Cancer of the testicles, also known as testicular cancer, is one of the less common cancers. It usually affects younger men between the ages of 15 and 49.
The most common symptom is a painless lump or swelling in the testicles. Other symptoms can include:
a dull ache in the scrotum (the sac of skin that hangs underneath the penis and contains the testicles)
a feeling of heaviness in the scrotum
Men should check their testicles every month for any unusual lumps, much like women are advised to check for breast lumps regularly.
Read more about the symptoms of testicular cancer.
Acknowledgement: NHS Choices 2014